Egyptian authorities have restricted the sale of yellow reflective vests, fearing opponents might attempt to copy French protesters during next month’s anniversary of the 2011 popular uprising that toppled autocrat Hosni Mubarak.

Pressure is mounting on French President Emmanuel Macron to announce measures to calm violent protests when he addresses the nation on Monday, and breaks a silence seen as aggravating a crisis that has shaken the government and the whole country.

Scuffles have broken out between police and some French protesters angry over rising taxes for a third straight weekend, after small pockets of demonstrators built barricades in the streets of central Paris and lit fires.